CAS OpenIR  > 中科院上海应用物理研究所2004-2010年
Speciation of iron in atmospheric particulate matter by EXAFS
Wang, YS; Li, AG(李爱国); Zhang, YX(张元勋); Xie, YN; Li, DL; Li, Y(李燕); Zhang, GL(张桂林); Zhang, GL (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
2006
Source PublicationCHINESE SCIENCE BULLETIN
ISSN1001-6538
Volume51Issue:18Pages:2275
AbstractThe study on elemental speciation in atmospheric particulate matter (PM) is important for understanding the formation and origin of pollution and evaluating their toxicity. In this paper, the speciation of iron in atmospheric PM was investigated with extended X-ray absorption fine structure (EXAFS) spectra based on synchrotron radiation. The chemical components of PM can be calculated by regression analysis of EXAFS spectra. This is a non-destructive method. In order to have knowledge of the influence of chemical components on EXAFS spectra, we prepared a series of mixed reference samples, and proved the precision of method is good. The PM samples with different particle sizes and from different sampling sites were collected in Shanghai, China. The, chemical components of the samples were calculated by regression analysis of EXAFS spectra. The results show that the iron in all PM samples mainly consist of Fe2O3, Fe3O4 and Fe-2(SO4)(3), but their proportions are different in different samples. The changes of components among PM samples were observed preliminarily. The concentrations of iron in the samples were determined by proton-induced X-ray emission (PIXE) technique. It is observed that the concentrations of iron in the samples of iron and steel industrial district were much higher than those of other districts, and chemical components were also different from those of others.
KeywordAtmospheric Particulate Matter Speciation Iron Exafs Regression Analysis
Subject AreaChemistry ; Materials Science
Indexed BySCI
Language英语
Funding Project应物所项目组
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/8192
Collection中科院上海应用物理研究所2004-2010年
Corresponding AuthorZhang, GL (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Wang, YS,Li, AG,Zhang, YX,et al. Speciation of iron in atmospheric particulate matter by EXAFS[J]. CHINESE SCIENCE BULLETIN,2006,51(18):2275.
APA Wang, YS.,Li, AG.,Zhang, YX.,Xie, YN.,Li, DL.,...&Zhang, GL .(2006).Speciation of iron in atmospheric particulate matter by EXAFS.CHINESE SCIENCE BULLETIN,51(18),2275.
MLA Wang, YS,et al."Speciation of iron in atmospheric particulate matter by EXAFS".CHINESE SCIENCE BULLETIN 51.18(2006):2275.
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